Home / 657,864.78-907,875.36-403,166.76

Finding the Fourth Proportional to 657,864.78, 907,875.36 and 403,166.76

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Solution

The fourth proportional to 657,864.78, 907,875.36 and 403,166.76 is: 556,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,864.78 : 907,875.36 = 403,166.76 : x
  2. Step 2: Convert to fraction form
    657,864.78/907,875.36 = 403,166.76/x
  3. Step 3: Cross multiply
    657,864.78x = 907,875.36 × 403,166.76
  4. Step 4: Simplify right side
    657,864.78x = 366,025,167,375.03
  5. Step 5: Solve for x
    x = 366,025,167,375.03/657,864.78
  6. Step 6: Final answer
    x = 556,383.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.